package com.chinasofti.manager.domain.StrintBuilder;

public class Demo03 {
    public static void main(String[] args) {
        StringBuilder sb = new StringBuilder();
        sb.append("hello");
        String s = sb.toString();
        System.out.println(s);

        StringBuilder sb1 = new StringBuilder(s);
        System.out.println(sb1);

//        StringBuilder sb2 = s;

    }
}
